Unable to run UDP

[yogeshwsu]

Hi,

In my setup, I have two physical machines (Host 1 and Host 2) with two DPDK configured 10G Intel NICs (port 0 and port 1) on each. Port 0 and port 1 of both machines are connected with each other directly. On Host 1 and 2, ans is running and dpdk-iperf server is running on Host 2. I am using dpdk-iperf client on Host 1. I am trying to send UDP traffic but unable to do so, while same setup is working for TCP traffic. Following are the logs from client end.

root@Host1:/usr/src/dpdk-iperf# ./dpdk_iperf3 -c 192.168.0.11 -u
EAL: Detected 32 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket_7916_4e5a9947e55bb0
EAL: Probing VFIO support...
USER8: LCORE[-1] anssock any lcore id 0xffffffff
USER8: LCORE[5] anssock app id: 7916
USER8: LCORE[5] anssock app name: dpdk_iperf3
USER8: LCORE[5] anssock app lcoreId: 5
USER8: LCORE[5] mp ops number 4, mp ops index: 0
fcntl(F_GETFL): Bad file descriptor
Connecting to host 192.168.0.11, port 5201
iperf3: error - unable to start stream listener:

[Jerry-Tianchen]

@yogeshwsu Similar Error. May I ask if you have figured it out?
I saw a hardcoded "return -1" in function recvfrom() in ans_module.c.
I have no idea why the author said "UDP is supported"....